PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-01:42:40
G01     88.8           32.1                5.5 +/-    0.89       9.2 +/-    0.89  0.090 / 0.370
G07     126.5          44.7                7.4 +/-    0.88      10.0 +/-    0.88  0.100 / 0.350
G11     69.9           40.7                3.9 +/-    0.43       5.6 +/-    0.43  0.040 / 0.060
G13     294.1          35.8                4.8 +/-    1.02       7.5 +/-    1.02  0.040 / 0.050
G15     314.0          11.1                2.1 +/-   10.60       5.8 +/-   10.60  0.030 / 0.050
G17     215.8          53.6                5.7 +/-    0.89       6.9 +/-    0.89  0.030 / 0.050
G19     215.2          28.6                5.5 +/-    3.92       9.9 +/-    3.92  0.070 / 0.090
G28     352.9          61.6                2.5 +/-    1.06       2.8 +/-    1.06  0.080 / 0.110
G30     113.0          70.8                5.1 +/-    0.76       5.4 +/-    0.76  0.070 / 0.130